Search by keywords, or use filters to narrow down results by type, topic, or ecosystem.
Displaying 5701 - 5720 of 6068 results
National Park Service policies concerning fire have changed over the years from no policy at all in the early years, through years of absolute fire suppression, to a period of experimentation and refinement with a full spectrum of integrated fire…
Year Published:
This FEIS species review synthesizes information on the relationship of Salix geyeriana (Geyer willow) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Year Published:
Disturbance regimes, resilience, and recovery of animal communities and habitats in lotic ecosystems
Disturbance regime is a critical organizing feature of stream communities and ecosystems. The position of a given reach in the river basin and the sediment type within that reach are two key determinants of the frequency and intensity of flow-…
Year Published:
This FEIS species review synthesizes information on the relationship of Mahonia nervosa (Cascade barberry) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Year Published:
This book takes a systems approach to organizational learning. Senge argues that “a learning organization is a place where people are continually discovering how they create reality. And how they can change it”. This book explains why a learning…
Year Published:
The responses of streams to the 1979 Mortar Creek fire in central Idaho provide valuable insights into the extended impact of wildfire on trout habitat. The fire dramatically increased runoff and fine sediment levels and reduced shading and cover…
Year Published:
This FEIS species review synthesizes information on the relationship of Vaccinium ovalifolium (ovalleaf huckleberry) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Year Published:
This FEIS species review synthesizes information on the relationship of Taxus brevifolia (Pacific yew) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Year Published:
This FEIS species review synthesizes information on the relationship of Selaginella densa (lesser spikemoss) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species…
Year Published:
[Excerpted from text] The growth of wildfires is related to three broad factors: fuel type, topography and weather. The National Fire Danger Rating System and the Fire Behavior Prediction System combine these factors to predict the probability and…
Year Published:
Biomass and hydrocarbon fuel fires are two common sources of obscuring smoke which present significant operational challenges over a broad range of possible viewing wavelengths. This is especially true of very large fires where the primary smoke…
Year Published:
Predicting equilibrium moisture content of some foliar forest litter in the northern Rocky Mountains
Forest foliage that comprises much of the forest floor litter has higher equilibrium moisture content, EMC, than woody components. The EMC's at 300 °K were found to increase as follows: grasses < fir-spruce needles < pine-cedar needles…
Year Published:
This FEIS species review synthesizes information on the relationship of Vaccinium myrtilloides (velvetleaf blueberry) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the…
Year Published:
This FEIS species review synthesizes information on the relationship of Xerophyllum tenax (beargrass) to fire--how fire affects the species and its habitat, and fire management considerations. Information is also provided on the species'…
Year Published:
To provide adequate resource protection in alpine and subalpine areas, managers need to expand their perspective and focus on ecosystem and landscape-level management. Single-resource and microsite focuses stymie integrated management and protection…
Year Published:
A successional process model has been adapted for use with species from ponderosa pine/Douglas-fir (Pinus ponderosa var. ponderosa)/(Pseudotsuga menziesii var. glauca) forests of the inland Northwest. Its design allows modification for application…
Year Published:
Fire affects spawning areas and food habitat in streams by indirectly influencing waterflow, nutrients, erosion, sedimentation, debris, and water temperature. The response of vegetation following fire is the most important factor affecting aquatic…
Year Published:
Habitat distribution and stand dynamics of whitebark pine (Pinus albicaulis) within the whitebark pine zone of the Mount Washburn massif, Yellowstone National Park were investigated as part of a study of relationships among grizzly bears, red…
Year Published:
Habitats or environmental factors that convey spatial and temporal resistance and/or resilience to biotic communities that have been impacted by biophysical disturbances may be called refugia. Most refugia in rivers are characterized by extensive…
Year Published:
We present a narrative account of case studies of the recovery of flowing water systems from disturbance, focusing on the investigators' conclusions about recovery time and the factors contributing to recovery. We restrict our attention to case…
Year Published: